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Thread: EnerTrac 600 series In wheel Motor

              
   
   
  1. #11
    Senior Member markcycle's Avatar
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    I'm sure unsprung weight plays a small negative effect on the handling

    Ed you're so into this competition thing. You know I don't drive the best car, live in the best house but i do have the best wife.
    My car get me where I'm going and doesn't brake down, My house is comfortable and the roof doesn't leak and my wife keeps me happy and sane.
    My customers are happy because they can, for a reasonable price put a E dirt bike together in a quick and easy way thats fun to ride.
    Such as Edward T's build

    No one is claiming that we are making an old dirt bike into a new racing machine.

    Mark
    Last edited by markcycle; 30 September 2010 at 2119.
    Trying to Change the old school ways of doing things
    But I never Never try to break the laws of Physics
    http://www.enertrac.net
    http://www.evalbum.com/preview.php?vid=1543
    http://www.youtube.com/watch?v=nEldNmBgIF0
    http://www.evalbum.com/2568

  2. #12
    russell
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    Mark:

    At a given voltage, the 602 is designed for speed, the 603 for more torque at the expense of speed (compared to the 602). The Enertrac web site says 45 mph at 72 volts for the 602, 30 mph at 72 volts with the 603. Might you be thinking about a motor with less torque and more speed than the 602?

    Russ

  3. #13
    Senior Member markcycle's Avatar
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    Quote Originally Posted by russell View Post
    Mark:

    At a given voltage, the 602 is designed for speed, the 603 for more torque at the expense of speed (compared to the 602). The Enertrac web site says 45 mph at 72 volts for the 602, 30 mph at 72 volts with the 603. Might you be thinking about a motor with less torque and more speed than the 602?

    Russ
    The thing to do is to go with smaller AH batteries and put more in series, for instance use 32 20AH batteries instead of 24 40AH batteries. Then lower the current limit of the controller so as to not exceed the max C rate of the batteries and you get exactly what you want lower torque and higher speed at no increase in cost.

    Mark
    Last edited by markcycle; 30 September 2010 at 2136.
    Trying to Change the old school ways of doing things
    But I never Never try to break the laws of Physics
    http://www.enertrac.net
    http://www.evalbum.com/preview.php?vid=1543
    http://www.youtube.com/watch?v=nEldNmBgIF0
    http://www.evalbum.com/2568

  4. #14
    Junior Member racermike39's Avatar
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    I rode Mark's E-Dirt bike with the Hub motor on 100 volts, and it is as fast on accelleration from 0-25 as any current ICE 125 motorcross bike. I never hit the top speed of the bike, but it was well above 45 MPH @ 100 volts. The bike is amazing on torque and speed, and I watched a compitent rider doing wheelies and jumps within SECONDS of getting on the bike. It didn't seem like it required any adaptation for the rider to use the power that was available. It was VERY impressive! I'm sure it would take a little getting used to for a rider to pull off some of the wild free style stunts with the increased unsprung weight, but I predict it can and will be done in the VERY near future. Hey Mark, Have Josh start practicing back flips so you can have the first electric MC to do a back flip!
    Mike K.

    1997 Honda CBR 600 F3
    72Volt (6) 55Ah Deka SLA AGM
    25 Mile range
    60 MPH
    "Jesus transformed me like the apostle Paul".

  5. #15
    Senior Member markcycle's Avatar
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    EnerTrac verison of the GPR-S

    We finally got around to starting the build. One of three frames we have in house, First thing we did was cut out the motor mount structure.


    Now Look how much space there is for batteries!!

    Mark
    Trying to Change the old school ways of doing things
    But I never Never try to break the laws of Physics
    http://www.enertrac.net
    http://www.evalbum.com/preview.php?vid=1543
    http://www.youtube.com/watch?v=nEldNmBgIF0
    http://www.evalbum.com/2568

  6. #16
    electrician
    Guest
    looking forward to updates on your GPR-S builds. That is the kit I am going to buy and thinking about using the 602.

  7. #17
    o_O
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    Neat to see the Enertrac on a GPR-S frame. Yeah that is alot of space for batteries, what ya gonna put in there?

  8. #18
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    Quote Originally Posted by racermike39 View Post
    I rode Mark's E-Dirt bike with the Hub motor on 100 volts, and it is as fast on accelleration from 0-25 as any current ICE 125 motorcross bike. I never hit the top speed of the bike, but it was well above 45 MPH @ 100 volts. The bike is amazing on torque and speed, and I watched a compitent rider doing wheelies and jumps within SECONDS of getting on the bike. It didn't seem like it required any adaptation for the rider to use the power that was available. It was VERY impressive! I'm sure it would take a little getting used to for a rider to pull off some of the wild free style stunts with the increased unsprung weight, but I predict it can and will be done in the VERY near future. Hey Mark, Have Josh start practicing back flips so you can have the first electric MC to do a back flip!
    I think the first electric back flip has already been done. Sorry.

    What I'd like to know is, what is the limits of the motor. Can it run 70 mph if given enough juice?


  9. #19
    Senior Member markcycle's Avatar
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    70 MPH and Beyond 80MPH is the fastest EnerTrac has tested, but by no means the fastest this motor will do. Given the opportunity I hope to show the motor at well over 100 MPH this year.

    Of course it all depends on the bike's Aero and weight.

    EnerTrac creed our approach is to offer in wheel motors and custom rims and build custom motorcycles, that are fun to ride and have the potential to hold more batteries and go the farthest period. If customers want to go really fast (way over 100 MPH) with the 600 series motor I'm there to help.

    Mark
    Last edited by markcycle; 01 January 2011 at 1242.
    Trying to Change the old school ways of doing things
    But I never Never try to break the laws of Physics
    http://www.enertrac.net
    http://www.evalbum.com/preview.php?vid=1543
    http://www.youtube.com/watch?v=nEldNmBgIF0
    http://www.evalbum.com/2568

  10. #20
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    Mark,

    Build something like this with several hundred volts of Lipo.

    http://www.wroum.dk/silvergiant/

    That would be a real Battery Box Motorcycle!

    Warren

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